[King Prout]

the tan pill is Cialis.

there are currently three major erectile dysfunction drugs on the market here. descriptions follow, to the best of recall of sales pitches of drug reps:

Viagra was the first. IIRC, supposedly takes 1 hour to have any effect, and only lasts 2 hours, causes a blue-steelie. IIRC, has some telltale side-effects: major facial flush being one. Has some annoying-to-dangerous side effects: glare-blindness IIRC.

Levitra was next. IIRC, supposedly takes about an hour to have effect, lasts about 10 hours, causes a blue-steelie. Side effects similar to Viagra.

Cialis is the latest. IIRC, takes 30 minutes to start taking effect, has more gentle effect overall, has fewer/less prominent side effects, lasts 36 hours, and in the TV ads has a caution concerning the dangers of having an erection which lasts longer than four hours. Personally, i think that warning is a brilliant stroke (no pun) of marketing.

I cannot help but wonder: what happens if one healthy non-erectile-dysfunctioned man takes one of each?

[NewRomeTacitus]

I have the bad habit of looking at the computer while listening to the television. I thought they were saying "For erectile dysfunction, see Alice".

[cyborg]

A lot thoe erectile dysfunction stuff is taken by men who aren't middle aged or dysfunctional. Having an erection that lasts hours may be the stuff of porno but a lot of my customers say that's not what they want *LOL*

[musicman]

I wish I could give credit to the comedian who I heard this joke from,( could have been Jay Leno )....but as a possible answer to your question about someone taking one each of the drugs you listed :

"Did you see the news story about the guy who took too many Viagra pills and died ? At his funeral, it took all six of his pallbearers to get the lid closed on his coffin !!"